New type of welding wire, made of stainless steel material, suitable for tin plating and repair. New type of welding wire, suitable for electric soldering irons and lighters, tin wire welding for household use in cities, suitable for nickel and zinc batteries. Can be directly used with a lighter for soldering various circuit boards, batteries, electronic products, computers, etc. LED, Microelectronics, electrical appliances, mobile phones, cameras, and so on. Almost applicable to any electronic product